
Richard McSweeney developed and enhanced embedded systems features in the nrfconnect/sdk-zephyr and zephyrproject-rtos/zephyr repositories, focusing on power management and device driver architecture. He implemented comprehensive power management for the Infineon PSC3, introducing multiple power states and sleep tracking using C and device tree source (dts) to optimize energy efficiency. Richard stabilized the Zephyr platform by disabling unsupported hardware in the device tree, ensuring system reliability during PSC3 integration. He also refactored the autanalog ADC driver into a multi-function device architecture, improving configurability and maintainability. His work demonstrated depth in C programming, Zephyr RTOS, and device tree management.
Concise summary for 2026-03: Delivered a refactor of the autanalog ADC driver into a multi-function device (MFD) architecture with support for basic and advanced modes, unified AC configuration handling, and phandle-based overlays in PSE84 DTS. This change improves configurability, user experience, and maintainability across the Zephyr autanalog ADC subsystem.
Concise summary for 2026-03: Delivered a refactor of the autanalog ADC driver into a multi-function device (MFD) architecture with support for basic and advanced modes, unified AC configuration handling, and phandle-based overlays in PSE84 DTS. This change improves configurability, user experience, and maintainability across the Zephyr autanalog ADC subsystem.
January 2026: Stabilized the Zephyr-based platform in the nrfconnect/sdk-zephyr repository by hardening the device tree against PSC3-incompatible components. Implemented a targeted device-tree fix to disable an unsupported flash controller for Infineon Cat1B MPNS to prevent PSC3 instability. This keeps the system stable while PSC3 readiness is being developed and establishes a clear baseline for future PSC3 integration.
January 2026: Stabilized the Zephyr-based platform in the nrfconnect/sdk-zephyr repository by hardening the device tree against PSC3-incompatible components. Implemented a targeted device-tree fix to disable an unsupported flash controller for Infineon Cat1B MPNS to prevent PSC3 instability. This keeps the system stable while PSC3 readiness is being developed and establishes a clear baseline for future PSC3 integration.
December 2025 monthly summary for nrfconnect/sdk-zephyr: Delivered PSC3 Power Management Enhancements for the Infineon PSC3, introducing comprehensive power management with multiple power states, sleep and deep sleep modes, and sleep-attempt tracking to optimize energy efficiency. Updated the device tree to reflect PSC3 power states. This work enables longer battery life and reduced runtime energy consumption in field deployments, with adherence to Zephyr project guidelines and signed-off commits.
December 2025 monthly summary for nrfconnect/sdk-zephyr: Delivered PSC3 Power Management Enhancements for the Infineon PSC3, introducing comprehensive power management with multiple power states, sleep and deep sleep modes, and sleep-attempt tracking to optimize energy efficiency. Updated the device tree to reflect PSC3 power states. This work enables longer battery life and reduced runtime energy consumption in field deployments, with adherence to Zephyr project guidelines and signed-off commits.

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